The FDA explicitly states this standard is relevant . It also cross-references this method with critical international standards like ISO 11607-1 and ISO 11607-2 , which are essential for packaging terminally sterilized medical devices. This recognition solidifies the vacuum bubble test as a cornerstone in the validation of sterile barrier systems globally.
Are you trying to comply with a specific regulatory body, like the or ISO ?
What (medical, food, industrial) are you testing?
The principle is straightforward: The package is submerged in water, and a vacuum is drawn inside a test chamber. This creates a pressure differential. If there is a leak in the package, the air inside escapes and manifests as a steady stream of bubbles, allowing the operator to pinpoint the exact location of the defect. astm d3078 pdf 2021
A vacuum is drawn, lowering the pressure inside the chamber.
The designation indicates that the technical procedure originally established in 2002 was reapproved by the ASTM committee in 2021 without major technical changes.
ASTM D3078-02(2021)e1 serves as the standard test method for identifying gross leaks in flexible or semi-rigid packaging using bubble emission. The procedure involves submerging a sample in a vacuum chamber to detect escaping air bubbles, providing a qualitative pass/fail result. For a detailed explanation of the protocol, visit Sanatron . The FDA explicitly states this standard is relevant
| Specification | Description | | :--- | :--- | | | ASTM D3078-02(2021)e1 | | Test Sensitivity | The standard is designed to detect "gross leaks" and its sensitivity is approximately 1 x 10⁻⁵ atm·cm³/s (or 1 x 10⁻⁶ Pa·m³/s ). | | Limitation | The method is explicitly not suitable for detecting small (micro) leaks due to the physics of the test. As the 2021 edition clearly states, "Small leaks may not be detected by this procedure". | | Safety & Environment | The 2021 edition reinforces the user's responsibility to follow appropriate safety, health, and environmental practices , aligning with modern standards for handling and disposal. | | International Alignment | It reaffirms that ASTM D3078 is developed in line with the World Trade Organization's (WTO) principles for the development of international standards. |
BUBBLE STREAM DETECTED? | +--------------+--------------+ | | YES NO | | v v [ FAILED TEST ] [ PASSED TEST ] Steady bubbles No bubble stream indicate a physical indicates a secure, defect or hole. airtight seal.
For the pharmaceutical and medical device sectors, the choice of test method is often dictated by regulatory guidance such as FDA CFR 21 Part 820 or ISO 11607 (Packaging for terminally sterilized medical devices). Are you trying to comply with a specific
An important procedural note: both the test sample and the test fluid must be at equilibrium with normal room temperature to ensure consistent results.
Ensures one-way valves work without body leaks.
The chamber is sealed, and a vacuum is drawn (typically at a set pressure, often around 10 inches Hg or ~34 kPa, adjusted based on the package type).
First published in 1994, the standard has been periodically reviewed and reaffirmed to reflect current industry best practices. The most recent version confirmed by ASTM is ASTM D3078-02(2021)e1, which was approved and published on February 15, 2021.
: It is not sensitive enough for microscopic pores (see ASTM F2095 for high-sensitivity needs).